[MCR] Howsons 16 February 2010

Subject: [MCR] Howsons 16 February 2010
Date: Tue, 16 Feb 2010 14:19:55 -0800
The dreaded surface hoar has shown itself in the Howsons. Today I remotely triggered two size 3 avalanches simultaneously. From the broad flat summit of Tom George Mountain, a whumpf dropped a 300 m wide and 1 m thick piece of cornice onto the East flank of Tom George Mountain. We heard prolonged thunder, but it took us a while to safely get to the edge and get a view. The avalanche had run far out onto the plateau. Then we found out that the fracture had pulled around the NE ridge of Tom George Mountain and released the entire North Bowl. Many of you know those lines. Today, they would have been deadly. We found some old, entirely degraded, but discernible surface hoar on the bed surface. The snow that released was storm snow. It blew fairly hard at ridgetops the last few days.

Yesterday we skied through Polemic Pass, which means travelling on some very steep and exposed south facing alpine terrain. All of this had released on the 13th in a widespread avalanche cycle, so we felt entirely confident. Today's avalanches released on steep terrain, but fractured into and pulled down some fairly moderate angle sections.

Right now, the good skiing is on cold northerly aspects as the sun has been on the southerly and southwesterly ones. It would be good to avoid even moderately steep windloaded terrain in those aspects that has not released in the last cycle, even if that means skiing suncrust.Poor skiing beats getting killed any day.

--
Christoph Dietzfelbinger
IFMGA/ UIAGM Mountain Guide - Bear Mountaineering and the Burnie Glacier Chalet
Box 4222        Smithers, B.C.          V0J 2N0 Canada
tel. 250-847-3351/ fax 250-847-2854 info@xxxxxxxxxxxxxxxxxxxxx www.bearmountaineering.ca

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